A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

A bean roasting system includes a roasting drum, an agitator, and a door. The roasting drum has an inside surface extending from a back end to a front end. The agitator has blades mounted to an axial shaft. The axial shaft has an anterior end portion. The door is mounted rotationally relative to the roasting drum and includes a glass plate and a bearing assembly. The glass plate provides visual access to contents inside the roasting drum when the door is closed. The bearing assembly includes an outer housing and an inner bearing. The outer housing is mounted to the glass plate. The inner bearing defines a receiving hole that receives and supports the anterior end portion of the axial shaft when the door closed.

A roaster for roasting articles includes a containing device, an air supplying device, a first separating device, and a collector device. The containing device defines a roasting chamber. The air supplying device generates a heated air stream that flows into the roasting chamber. The first separating device has a shell unit disposed above the containing device, and a first separating member disposed in the shell unit and configured such that impurities which are carried along with the heated air stream are filtered out from the heated air stream. The collector device is connected to the shell unit for collecting the impurities filtered out from the heated air stream.

A roaster for roasting articles includes a containing device, an air supplying device, a first separating device, and a collector device. The containing device defines a roasting chamber. The air supplying device generates a heated air stream that flows into the roasting chamber. The first separating device has a shell unit disposed above the containing device, and a first separating member disposed in the shell unit and configured such that impurities which are carried along with the heated air stream are filtered out from the heated air stream. The collector device is connected to the shell unit for collecting the impurities filtered out from the heated air stream.

An apparatus for roasting coffee beans comprises a roasting chamber for containing coffee beans. The roasting chamber is positioned within a resonant cavity of a waveguide. A microwave emitter produces microwave energy within the waveguide with one or more stable high intensity microwave regions within the roasting chamber to heat the coffee beans in the roasting chamber to a temperature sufficient to roast the coffee beans. A device configured to move the coffee beans within the one or more high intensity microwave regions is coupled to the roasting chamber.

An arrangement for producing personalized coffee comprises a data gathering device for gathering user related data for producing said personalized coffee. The arrangement also comprises plurality a roasting systems, where each of the roasting system comprises hoppers with a selection of coffee bean varieties, a roasting unit for roasting the selected coffee bean varieties, a grinding unit for grinding the roasted coffee bean varieties, and a packaging unit for packaging the roasted and/or grinded coffee bean varieties. Further the arrangement comprises a controlling computer for receiving said user related data for producing said personalized coffee. The controlling computer is configured to form controlling parameters based on said user related data and thereby control the operations of at least one roasting device of said selected roasting system of said at least two roasting systems by said controlling parameters in order to produce said personalized coffee.

A bean roasting system includes a roasting chamber, a blower, a variable diverter and a controller. The roasting chamber, the blower and the variable diverter each is disposed at least partially within a recirculating gas flow path. The blower is configured to provide a flow stream of gas through the recirculating gas flow path. The variable diverter is configured to split the gas flow path into at least two flow paths including a treated flow path and a bypass flow path. The treated flow path includes a series arrangement of a gas heater and a catalytic converter. The variable diverter is configured to control a percentage of a flow stream of gas that is diverted into the bypass flow path. The controller is configured to activate different predetermined operating modes for the bean roasting system by controlling a state of the variable diverter and a state of the heater.

A bean roasting system includes a roasting chamber, a blower, a variable diverter and a controller. The roasting chamber, the blower and the variable diverter each is disposed at least partially within a recirculating gas flow path. The blower is configured to provide a flow stream of gas through the recirculating gas flow path. The variable diverter is configured to split the gas flow path into at least two flow paths including a treated flow path and a bypass flow path. The treated flow path includes a series arrangement of a gas heater and a catalytic converter. The variable diverter is configured to control a percentage of a flow stream of gas that is diverted into the bypass flow path. The controller is configured to activate different predetermined operating modes for the bean roasting system by controlling a state of the variable diverter and a state of the heater.

A roasting and grinding system (100) for preparing and delivering on demand roast and ground coffee, the system comprising: one or more raw containers (10, 10, 10, etc.) comprising green coffee beans of the same or of different types; a roasting unit (20) receiving green coffee beans from one or more of the raw containers (10, 10, 10, etc.) at the time, the roasting unit (20) adapting automatically the roasting parameters to the type of green coffee beans to roast; a conservation area (30) where the roasted coffee is stored at appropriate atmosphere until it is grinded; a grinding area (40) comprising one or more grinding units (41, 41, 41, etc.) one per type of coffee to be ground, adapting automatically the grinding parameters to the type of coffee or coffee mix to be ground. The invention further relates to a raw container (10, 10, 10, etc.) comprising green coffee beans detachably connectable to a roasting and grinding system (100), and to a method for roasting and grinding coffee blends on demand using such a system.

A bean roasting system includes a roasting subsystem, a cooling subsystem, an air exit subsystem that is fluidically coupled to the cooling subsystem, and a controller. The cooling subsystem includes an outer housing containing a holding chamber, a cooling platform defining a lower bound of the holding chamber, a vibration actuator coupled to the cooling platform, and a platform actuator coupled to the cooling platform. The controller is configured to operate the air exit subsystem to maintain a flow of air up through the holding chamber, operate the roasting subsystem to transfer a batch of beans from the roasting subsystem to the holding chamber, operate the vibration actuator to vibrate the cooling platform, operate the air exit subsystem and operate the vibration actuator accelerates cooling of the batch of beans, and operate the platform actuator to transport the batch of beans out of the cooling subsystem.